form{
  width: 400px;
  height: 603px;
  margin: 40px auto;
}
form ul{
   width: 400px;
   height: 504px;
}
form ul li{
    width: 398px;
    height: 42px;
    border: 1px solid #d9d9d9;
    margin-bottom: 48px;
    line-height: 42px;
    text-indent: 10px;
}
form ul li span{
    font-size: 20px;
    float: left;
}
form ul li input{
    border: none;
    height: 42px;
    float: right;
    font-size: 16px;
    line-height: 42px;
    outline: none;
}
.tongyi{
    height: 16px;
    font-size: 14px;
    margin-top: 10px;
}
.i1{
    width: 266px;
}
.i2{
    width: 266px;
}
.i3{
    width: 266px;
}
.i4{
    width: 266px;
}
.i5{
    width: 140px;
}
.i6{
    width: 140px;
}
form ul li button{
    width: 120px;
    height: 38px;
    float: right;
    margin-top: 2px;
    border: none;
}
.b1{
  background-color: blue;
  color: white;
  font-size: 20px;
}
.b2{
    background-color: #e6e6e6;
    font-size: 16px;
    color: #4d4d4d;
}
.tong2{
    color: #ff6600;
}
.btn{
    width: 400px;
    height: 44px;
    background-color: blue;
    color: white;
    font-size: 30px;
    border: none;
    margin-top: 30px;
}
.di0{
    height: 2px;
    background-color: #e6e6e6;
}
